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+
+//To find the Impedance the Peak Current and Resonant Frequency of the LCR Series Circuit
+
+//Example 39.4
+
+clear;
+
+clc;
+
+L=100*10^-3;//Self Inductance of Inductor inHenry
+
+C=100*10^-6;//Capacitance of Capacitor in Farads
+
+R=120;//Resitance of Resistor in ohms
+
+E0=30;//Peak Value of EMF  of AC source in Volts
+
+w=100;//Angular Frequency of the AC source
+
+X=(1/(w*C))-(w*L);//Reactance of the Circuit in ohms
+
+Z=sqrt(R^2+X^2);//Total Impedance of the Circuit
+
+printf("Impedance of the LCR Series Circuit = %.0f ohms",Z);
+
+i0=E0/Z;//Peak Value of Current in Amperes
+
+printf("\n Peak current Value of the LCR Series Circuit = %.1f A",i0);
+
+f=(1/(2*%pi))*sqrt(1/(L*C));//Resonant Frequency of the Circuit
+
+printf("\n Resonant Frequency of the LCR Series Circuit = %.0f Hz",f);